221355540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{25097}}^1$

素因数の和:25126

約数の個数: 108

約数和(自身を含む): 781099956

約数和(自身を除く): 559744416

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2940, 4410, 8820, 25097, 50194, 75291, 100388, 125485, 150582, 175679, 225873, 250970, 301164, 351358, 376455, 451746, 501940, 527037, 702716, 752910, 878395, 903492, 1054074, 1129365, 1229753, 1505820, 1581111, 1756790, 2108148, 2258730, 2459506, 2635185, 3162222, 3513580, 3689259, 4517460, 4919012, 5270370, 6148765, 6324444, 7378518, 7905555, 10540740, 11067777, 12297530, 14757036, 15811110, 18446295, 22135554, 24595060, 31622220, 36892590, 44271108, 55338885, 73785180, 110677770, 221355540]

約数ペア:

[(1, 221355540), (2, 110677770), (3, 73785180), (4, 55338885), (5, 44271108), (6, 36892590), (7, 31622220), (9, 24595060), (10, 22135554), (12, 18446295), (14, 15811110), (15, 14757036), (18, 12297530), (20, 11067777), (21, 10540740), (28, 7905555), (30, 7378518), (35, 6324444), (36, 6148765), (42, 5270370), (45, 4919012), (49, 4517460), (60, 3689259), (63, 3513580), (70, 3162222), (84, 2635185), (90, 2459506), (98, 2258730), (105, 2108148), (126, 1756790), (140, 1581111), (147, 1505820), (180, 1229753), (196, 1129365), (210, 1054074), (245, 903492), (252, 878395), (294, 752910), (315, 702716), (420, 527037), (441, 501940), (490, 451746), (588, 376455), (630, 351358), (735, 301164), (882, 250970), (980, 225873), (1260, 175679), (1470, 150582), (1764, 125485), (2205, 100388), (2940, 75291), (4410, 50194), (8820, 25097)]